changing post to drill with feed/rev(G94) instead of feed/min(g95)

[aaron]

How to I change a turning post to output G94 FEED_PER_REVOLUTION instead of G95 FEED_PER_MINUTE ?

This has stumped me for a while I have managed to turn off the G94/G95 switch over but the post still pulls the wrong feed value for the tool.

every generic Turning post I have looked at does this however we alway machine with G94 on our lathes

Thanks

[skidsolo]

There is a check box in all the turning operations that allow you to program in feed/rev.

Most turning posts have this code:

 if (currentSection.feedMode == FEED_PER_REVOLUTION) {
    writeBlock(gFeedModeModal.format((properties.type == "A") ? 99 : 95));
  } else {
    writeBlock(gFeedModeModal.format((properties.type == "A") ? 98 : 94));
  }

[Laurens-3DTechDraw]

I think he knows that but is looking to do the drilling in G94 as well. 

There is no check box in drilling operations.

[skidsolo]

Yes this is something we have reported that needs fixing. I did make a change for a customer for this in his stop boring cycle:

  case "stop-boring":
      if (P > 0) {
        expandCyclePoint(x, y, z);
      } else {
        writeBlock(
          gRetractModal.format(98), gFeedModeModal.format(95), gAbsIncModal.format(90), gCycleModal.format(86),
          getCommonCycle(x, y, z, cycle.retract),
          feedOutput.format(F / tool.spindleRPM)
        );
      }
      break;

and then change onCycleEnd:

function onCycleEnd() {
  if (!cycleExpanded) {
    writeBlock(gCycleModal.format(80));
    writeBlock(gFeedModeModal.format(94));
    gMotionModal.reset();
  }
}

[aaron]

Thanks Skidsolo I will try that later.

Yes Laurens that is exactly what I am looking for, also the posts change from G18 to G17 before drilling (I have managed to comment this out) which our lathes don't like. I think this is the case because the posts view drilling as a milling operation.

[skidsolo]

To add a check box into the drilling operations makes sense. All the feeds and speeds for drilling given out by manufacturers are usually quoted in feed per rev. I remember all my setup guys knew the feed per rev for most materials to be drilled by heart.